Hey I've been stuck with this question about energy from the January 2018 edexcel unit 1, and I'd be REALLY grateful if someone could help solve this question ASAP :
"It can be assumed that only 50% of the energy supplied by the gunpowder in the cannon would have been transferred to the capsule.
Determine the mass of gunpowder that would have been required to obtain a maximum speed of 11km/s.
mass of capsule = 1500 kg
energy released from gunpowder = 3 MJ / kg"
THANK YOU SO MUCH